Biography
Dr. Thomas M. Brown
Dr. Thomas M. Brown
Department of Electronic Engineering, University of Rome Tor Vergata, Italy
Title: Perovskite Photovoltaics for Indoor Light Harvesting
Abstract: 
The Internet of Things revolution requires a low-cost, stable and efficient power source to allow autonomous operation of smart objects and wireless sensors networks. These need to operate indoors under artificial lighting with different spectra and power outputs compared to standard test conditions, i.e. under the sun. Here we show the progress achieved in our labs in developing perovskite solar cells for these conditions achieving 27% efficiency on rigid glass substrates under 200-400lx white LED illumination via optimization of effective electron transport layers. Via low temperature fabrication of device architectures, including mesoporous scaffolds, we manufactured 10%-12% efficient dye sensitized solar cells on metal substrates, 13% efficient perovskite cells on transparent PET films as well as over 22% on curvable ultra-thin glass substrates which represents the highest value for any PV flexible technology to date.
Biography: 
Thomas M. Brown investigated polymer OLEDs for his PhD at the Cavendish Laboratory, University of Cambridge. From 2001– 2005 he developed OTFTs and E-Paper as Senior Engineer with Plastic Logic Ltd. In 2005 he was recipient of a ‘‘Re-entry’’ Fellowship awarded by the Italian Ministry of University and Research and is Associate Professor at the University of Rome-Tor Vergata. Cofounder of the Centre for Hybrid and Organic Solar Energy (CHOSE), and Associate Editor of Solar Energy, he is author of over 150 publications and 15 patents. His current research is in perovskite solar cells, especially on a variety of flexible substrates, for light harvesting in indoor environments, and processing with greener solvents, as well as in bio-hybrid organic semiconductor photosensitive devices such as artificial retinas.